| 摘要 |
The drilling tool has at least one cutter plate (9, 9', 9) which is fitted in the circumferential surface (15) of the tool (1) so that there are two guide surfaces (31, 33), parallel to each other or to the axis of rotation (13) of the tool, spaced out from each other in the direction of rotation, which serve to support the tool against the workpiece surface being drilled by it. |
